Type-writing machine.



H. S. MGCORMAGK.- TYPE WRITING MACHINE. APPLICATION FILED DEC. 27, 1907.

Patented May 11, 1909.

Y r a E w m m M a 1 m w W r H. S. MoGORMAGK. TYPE WRITING MACHINE. KPPLIUATION FILED DEC. 27, 1907.

Patented May 11,1909. I

8 SHEETS-SHEET 3.

VWTNESSEB' of the platen frame of 1, but showing 1 in New York, in the county State of New York, have means for winding the tally strip and .pre-

' means for holding the end of the tally strip the lower end of um'rnnisri triis PATENT OFFICE.

HARRY S. McCORltliiC-K, OF NEW YORK,

-N. Y., ASSIGNOR TO UNDERWOOD TYPEWRITER COltlFANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING MAQIHNE.

no. 92,1,6 19. Specification of Letters Patent. Patented. May 11, 1909.

-, Application filed December 257, 1907. Serial No. 108,285.

To all whom it may concern:

Be it known that I, HARRY S.- MCCOR- MACK, a citizen of the United States, residing of New York and invented certain new and useful Improvements in Type- Writing Machines, of which the following isa specification.

' This invention relates to the tally chines, especially those in which an auxiliary u on 'spools arranged above the auxiliary patent".

One of the objects of the ing and adjusting the segmental auxiliary platen. j

An'ther object is to provide improved venting accidental backward movement thereof. 1

Another object is to provide improved on the windin spool. v Afurther oaject is to provide means for detaching the spool which carries the usual carbon strip together with its holder; and to provide improved means for detachably olding the spools.

The means by which these objects are attained are illustrated in the accompanying drawings, in which:

Figure 1 is a sectional elevation of one end an Underwood typewriting machine with my improvements applied thereto. The release key is shown depressed to release the rolls from the main platen and effect the line feeding of the tally strip.

Fig. 3 is a view showing parts as seen at Fig. the release key in normal position. Fig. 4 is a front elevation showing f an. arm which carries the delivery spool, and a yielding detent therefor. l

' Fig. 5 is a sectional view of the winding spool caught thereon;

Fig. 7 is showing the leadingend of the tally strip l Fig. 6 is a sectional elevation of the tally strip spools and platen.

a cross'section of t'liL parts seen at Fig. 4. Fig. 8 is a view similar to Fig. 5, hut showing the end of the tally strip released Fig. 9 is a perspective view from the spool. of a holding frame for the segnionlal platen.

strip for adjusting the 'mechanismof typewriting and other mewhich holds the auxiliary platen. platen is. arranged at the end of a main .rev-

oluble' platen, and the tally strip is wound l l tional views, showing invention is to l improve the manner of constructing, mountl the stud.

ling details seen at Figs. 18 and 19.

Fig. 2 is a front elevation of the same. l l

1, Fig. 10 is a plan and Fi 11 is a front elevai tion of the se ental' p laten, the tally strip winding spooand appurtenances; .the segmental platen being illustrated as partly 1 drawnout from its frame in Figs. l 11. Fi 12 is a front elevation,

a side e evation, showing the winding spool and'a frame which forms auxiliary platen. Fig. 14 and Fig. 1-5 a side .view of the frame Fig. 16 is Fig. 17 an end view Figs. 18 and-19 are seethe end of the ribbon detachably securing it is a plan,

a front view, and auxiliary platen.

spool and means for cured, and Fig. 19 showing it released from Fig. 20 is a sectional view show- Fig. 21 is a sectional view showing the manner of adjustably securing. the auxiliary platen carrier.

The usual cylindrical with an axle 2, where y it is revolubly mounted in the ends 3 of a platen frameA. Between the ends of the main platen 1 and the end 2% of the platen frame is confined'a segmental platen 5 whose front face is curved and approximately coincides .drical surface ofthe platenl; type bars 6 'striking on the front of both platens: Over the auxiliary platen, l mount a w-ii'idin spool 7 for the tally strip 8, a delivery spodl 9 for the same, and preferably a delivery spool 10 for a carbon strip 11. Upon the under side of the platen 1 run front and rear pressure rolls 1'2; 13, operated by springs 14, and released by means of a finger key 15 pivoted at 16 upon the end 3 of the platen frame. A link 17 exlendsfrom an arm 18 of the key to a crank 19 provided upon the end of a rock shaft '20, the latter having flats or rains 21 to engage arms 22, 23 to release the rolls 12, 13 in a well known manner, said arms '22, '23 being formed integral with roll carrying arms 24, 25, as usual. Depression and elevation of the key. 15 alternately releases and restores the pressure rolls. Upon the upper end of the link 17 is formed a dog 26 norniall engaging a ratchet wheel 27, which is connected to the strip winding sio'ol T by means of a hollow shaft 28 l(\'0ll1l)l( upon a rod '2) usually extending along the platen 1 from end to end of the platen frame, and fixed thereto. When the key 15 is depressed,

9,10 and to and Fig. 13

of the 7 upon a stud; Fig. 18 showing the spool as selaten 1 is provided I with the cylini latter engages the the dog 36 lifts the ratchet wheel 27 with which it is normally in engagement, thereby turning the spool 7 and drawing the strip 8 around thesegmental Iplaten 5. During the return stroke of the icy, the dog rides.

down without turning the ratchet wheel, so that the strip is fed .line by line every time that the pressure rolls 12, 13 are cast off to permit the withdrawal of a written bill and the insertion of a fresh sheet around the main platen 1. I

The dog 26 is normally in engagement with the ratchet wheel 27 to prevent accidental backward turning of the latter, which would sometimes mislead the operator by dropping the tally strip 11 sufficiently far down in front of the segmental laten '5 to cause the last item to occupy the osition from which it had just been advanced by the operation of the dog 26. This would lead the operator to think that he had already entered the total of the last written bill when in fact he had not entered such total. Such confusion and resulting mistakes are obviated by normally locking the ratchet 27 against backward movement.

When it is desired to unwind the writtentally strip from the spool 7, it is only necessary ti depress the key 15, thereby raising the link 17 until a cam or shoulder 30 on the relatively fixed platen axle 2 and by riding up thereon throws the. dog 25 forwardly away from the ratchet wheel 27 as at Fig. 1, thereby permitting the ratchet wheel to be turned backwardly to pay ofi the tally strip. The link 17 has a slot. 31 to engage'a pin 32 on the key arm 18, to permit the forward movement of the upper end of the-link. It will be understood that this dog releasing movement, although occurring at every depression of the key 15 after advancing the ratchet wheel 27, is intended principally to release the ratchet wheel for the purpose of unwinding the ribbon strip. At the return of the key 15 to normal position a hook or cam 33-formed onthe upper portion 'of the link 17 engages the top of the axle 2 toforce the dog 26 again into engagement with the ratchet wheel 27.

The leading end of the tally strip'8 is held on to the core 34 of the winding s 001 7 by means of a clip in the form of a bai comprising a pair of arms 35 and a cross-bar 36 uniting said arms. The latter are curved and normally occupy recesses 37 between the heads of the spool and the body of the core, the latter being reduced at its ends to form said recesses. The bar 36 is adapted to press the paper 8 into a recess 38 extending from end to endgof the spool core. The ends of the bail are turned in to form pivots 39 let into the ends of the core, and the bowed arms 35 are sufliciently yielding to enable the bar 36 to be s rung into recess 38 from the Fig. 8 to the Fig. 5 position. To release the clip, access is afforded to the bar 36 by means of a nick 40, Fig. 11, formed in the spool core between its ends The strip 8 is led down'from the spool 9 around the spool 7 and thence downwardly and forwardly around the r ron 68 and upwardly around the segments. platen 5 and over a roll 57, and thence backwardly to the winding spool 7.

The delivery s 001 9 comprises two flanges and a core 43, the latter fixed to the outer flange 44 and detachably mounted upon a stud 45 projectingifrom an. u standing arm 46. Outside of the flange, t e end of the core is slotted transversely on its opposite sides, the slots forming perforations and receiving a pair of forks 47 adapted to engage an annular groove 48 formed in the end ,ofthe stud 45, whereby the core and flange are looked upon the stud. Said forks are formed upon a plate or latch 49 having a finger piece 50, whereby the forks may be withdrawn from the groove in-the stud, thus permitting the core and flange to be taken off for withdrawing the paper roll or inserting a fresh roll. The end of the plate is guided by a screw or rivet 51', and the plate is preferably bowed or s rung betweenthe head of the screw and tile spool flange, as illustrated, so as to make sufficient friction to hold the plate where it is set. A slot 52 in the plate through which the screw passes, limits the throw of the latch.

The segmental platen 5 has dove-tailed upper and lower edges to fit between conver in jaws 53,, 54 bent forward from a verticail late 55, whichforins the backing for the p aten 5. Ears 56 are bent up from the upper plate 53 to carry an anti-friction roll 57 over which the strip is led. A air of cheeks 58 are bent back-from the p ate 55 and perforated at 59 to hinge upon the platen axle 2. The front face of the segment 5 is a trifle eccentric to the surface of theplaten 1, as seen at Fig. 17, so that by raising or lowering the segmental platen about the axle 2, it is brought into proper osition to be struck by the type 6, the type ars usually striking a fixed anvil 60 to limit the printing strokes. thereof. A bail like frame, confined between the cheeks 58, comprises side arms 61 and connecting bars 62, and is mounted upon both the platen axle 2 and the rod 29. A rod or tube 63 extends from one arm 61 to the other, and a screw 64 passes through a curved slot 65 in each of the arms 61 to secure the cheeks 58 or the segmental platen' frame in any position to which it may be adjusted about the platen axle '2. The screw is threaded into a boss 67 upon the left-hand arm 58. An apron 68 curves rearwardly. and. upwardly from the lower jaw 54, to serve as a guide for the descending tally strip. i

The arm 46 at its lower -end, is bent later-- means of a spring hold the arm 46 in spoolQ sufficiently forward of the top of t.

6 5 ant 79. The carbon strip .way.-

The spool 10, which ,shaft 28. Said boss is formed with adepression 7 2-in .which is pressed a roll 73 by 74,,carried, by the cross 7. The spring serves to the working position, as seen at Fig. 1, in. full lines, that 1s, With-the arm '69, Figs. 4 and e papershelf to give am 'le room for the operators hand to pass ba'c r of the spool to insert/ a sheet around' the main platen 1. When the tally strip is no longer in use, the arm 46 may be pressed back to the dotted line position at Fig. 1, whereit is out of the has a detachable core and flange like those of the spool9, is mounted upon a stud 76 rojecting from an arm 77 detachably secured-upon the top of the arm 46, the-arm 77 having a key-hole slot 7 S to engage an upper headed stud 7 9 upon arm 46, and also'havmgforks 80 at its lower portion to en age a lower headed stud 81 upon. arm 46. y drawing up the arm 77 the forks 80 are drawn off from the stud 81 .and the enlarged lower portion of the key-hole slot 78 maybe slipped off from the head of the stud spool 10 may thus be readily atta'ched'to or detached from the arm 46; and it will be understood that the carbon strip 11 is wound upon thespool 7 simultaneously with the tally stri 8. The carbon stri is used when it is esired to make carbon uplicates on the tally strips of the amounts entered upon the bills, such a case are inserted far enough to the .scope of the invention, and portions which vin right to overlap the tally strips.

Variations may be resorted to within the of the im rovements may be used without others. aving thus described my invention, claim: 1. The combination with a platen and a pressure roll therefor, of a tally strip winder aving a toothed wheel, a dog normally in engagement with said wheel to prevent backwardrotation-thereof, a key connected to said roll to release the same, and means for enabling said key during its roll releasing movement to both turn said wheel by means of said dog and carr the dog out of engagement with the wheel.

-2. The combination with a platen and a pressure roll, of a ratchet wheel forming part of a tally strip winding device, a ke -0 erated lever, a rock shaft to release said ro l, a link connected at one end to said rock shaft and at the other end having a loose connection to said lever, a

dog formed on said link and normally engaged to said inding wheel to prevent backward rotation of the latter,

means for tripping the dog away from the wheel-at thecompletion of the down .stroke of the key.

4 The-combination with a'platen and a pressure roll, of a ratchet .wheel forming part of. a tally strip winding'deviee, .a key-operated lever, a rock shaft :to release said roll, a link connected at one end to' said rock shaft and at the otherfendlha'vingia loose connection to said lever, a dog formed on said linkand normally engaged to said windingwheel' to prevent backward rotation of the latter, and means for tripping the dog away from the wheelv at the completionof theidown stroke of the key; a cam being provided to cooperate with the fixed member of the machine to rengage said dog to-said wheel at the return stroke of the key. j

4. The combination with a laten and a pressure roll, of a ratchet whee forming part of a t'allystrip winding device, a key-operated lever, a rockingmember to release said roll, a link connected atone end to said rocking member and at the other endhavin a pin-and-slot connection to said lever, a (0g formed on said link and normally engaged to said winding wheel to prevent backward rotationgiif the latter, a shoulder onsaid link to engage a fixed part for trip ing the dog away from the wheel at the comp etion of the down stroke of the key; and a cam upon said link to cooperate with the fixed member of the machine to reengage said dog to said wheel at the return stroke of the key.

1 5. In a typewriting machine, the combination with a main platen having an axle and a carriage in which the axle is journaled, of a segmental platen, a frame comprising a-plate having upper and lower jaws to hold the top and bottom edges of said segmental laten,

cheeks bent back from said plate and iaving perforations to fit loosely upon the platen axle, said segmental laten being approximately flush with t e main platen but slightly eccentric thereto, means to secure the frame where adjusted about the platen 11.0 axle, and an apron curving backwardly from the lower jaw.

. 6. In a typewriting machine, the combinal tion with a main platen having an axle and a carriage in which the axle is journaled, of a segmental platen, a frame comprising a plate having upper and lower jaws to hold the top and bottom edges of said se mental platen, cheeks bent back from said plate and having perforations to fit loosely upon the 'platen axle, said segmental platen being approximatel flush with the main platen but slightly eccentric thereto, means to secure the frame where adjusted about the platen axle and an apron curving,backwardly from the lower jaw, ears extending up from the upper jaw and carrying a roller, and spools from one to the other of which a tallystrip is lerlilaround said apron, segmental platen and re er.

' platen 7. In a typewri-ting machine, the combinationwith a cylindrical platen and an vaxle whereby it is journaled 1.?)011 a carriage, of a segmental platen and a. rame therefor, said frame comprisin a sheet metal back and convergmg jaws ent up therefrom, the segarm extendin mental platen having a dovetailed conformation to fit in said jaws, and cheeks whereby the frame is hinged upon the platen axle. 8. The combination with a revoluble platen and a platen frame or carriage, of a rod mounted in said carriage to extend along the platen, of a tally strip mechanism including a winding spool turning upon said rod, an arm hinged upon' said rod and extending upwardly therefrom, a delivery spool carried upon theupper end of said arm and hanging over the platen, and a yielding detent engaging said arm and permitting the latter to be swung backwardly to a position of disuse.

9. The combination with a revoluble and a platen-frame or carriage, of a rod mounted in said carriagetto extend along the platen, of a tally strip mechanism including a winding spool turning upon said rod, an arm hinged upon said rod and extending upwardly therefrom, a delivery spool carried upon the upper end of said arm and hanging over the platen, and a yielding detent engaging said armand permitting the latter to be swung backwardly to a position of disuse; a second armdetachably mounted upon thetop of the first arm, and a carbon-strlp spool l I carried upon the upper end of the second arm.

10. The combination with a revoluble platen and a platen frame, of a tally strip mechanism including a winding spool, an upwardly, a delivery spool carried upon the upper end of said arm, and anging over the p aten, a second arm detachably mounted upon the first arm, and a carbon strip spool carried upon the upper end of the second arm; the first arm having headed studs, and the second arm having both a key-hole slot to engage the upper stud and a fork to engage the lower stud.

11. In a mechanism of the combination with a stud transversely grooved at one end, of a spool core having a the class described,

flan e and mounted upon said stud, and a HARRY S. MoOORMAOK.

Witnesses:

JoHNO. SEIFERT,

KITTIE FRANKFORT.

plate mounted upon 

